KR101805798B1 - Pressure Control Device And Fluid Velocity In The Valve - Google Patents

Pressure Control Device And Fluid Velocity In The Valve Download PDF

Info

Publication number
KR101805798B1
KR101805798B1 KR1020150056246A KR20150056246A KR101805798B1 KR 101805798 B1 KR101805798 B1 KR 101805798B1 KR 1020150056246 A KR1020150056246 A KR 1020150056246A KR 20150056246 A KR20150056246 A KR 20150056246A KR 101805798 B1 KR101805798 B1 KR 101805798B1
Authority
KR
South Korea
Prior art keywords
fluid
flow path
guide groove
dispersion
control member
Prior art date
Application number
KR1020150056246A
Other languages
Korean (ko)
Other versions
KR20160126103A (en
Inventor
권갑주
김영범
정호열
Original Assignee
에쓰디디(주)
한국남동발전(주)
한국서부발전(주)
한국동서발전(주)
한국중부발전(주)
한국남부발전주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 에쓰디디(주), 한국남동발전(주), 한국서부발전(주), 한국동서발전(주), 한국중부발전(주), 한국남부발전주식회사 filed Critical 에쓰디디(주)
Priority to KR1020150056246A priority Critical patent/KR101805798B1/en
Publication of KR20160126103A publication Critical patent/KR20160126103A/en
Application granted granted Critical
Publication of KR101805798B1 publication Critical patent/KR101805798B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/52—Means for additional adjustment of the rate of flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sliding Valves (AREA)
  • Valve Housings (AREA)

Abstract

The present invention relates to a fluid velocity and pressure control apparatus for a valve, and by inserting a fluid control member into a disk stack for this purpose, a high temperature and high pressure fluid repeatedly performs resistance and diffusion through the fluid control member, Thereby minimizing damage to expensive disk stacks and plugs due to fluid resistance, thereby reducing the maintenance cost and simplifying the shape of the dispersion flow path formed in the disk stack to reduce the production cost of the disk stack There is a characteristic that it can make it cheap.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a valve control apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid velocity and pressure control apparatus for a valve, and more particularly, by inserting a fluid control member into a disk stack, a fluid of high temperature and high pressure repeatedly performs resistance and diffusion through the fluid control member, Thereby minimizing damage to expensive disk stacks and plugs due to fluid resistance, thereby reducing the maintenance cost and simplifying the form of the dispersion flow path formed in the disk stack, And more particularly, to a fluid velocity and pressure control apparatus for a valve having a structure capable of reducing cost.

In general, a fluid treatment apparatus such as a valve forms a pressure difference between a front end and a rear end to provide a driving force capable of flowing a fluid.

This driving force provides the flow rate of the fluid and consequently the flow rate of the fluid. Especially, when the difference between the shear pressure and the downstream pressure acting on the fluid treatment device is very large, if the pressure of the fluid flowing through the fluid treatment device is not reduced, the flow rate of the fluid becomes very fast, and noise, vibration, cavitation, Side effects.

In order to reduce such a problem, it is preferable to reduce the flow rate of the fluid passing through the fluid treatment apparatus by using the fluid flow decompression apparatus.

The pressure and flow velocity of the fluid depends on the resistance of the flow section corresponding to the flow path of the fluid

It is affected by. Therefore, if the difference between the front end pressure and the rear end pressure of the fluid treatment apparatus or the fluid pressure reducing apparatus is very large, the flow speed of the fluid becomes very fast. Therefore, if the resistance corresponding to the fluid flow is increased, There is a number.

As a device for reducing the flow of such fluid, there is a " resistance device for controlling the velocity and pressure drop of the fluid (No. 0176124 for registration room ").

Such conventional resistive devices for controlling the speed and pressure drop of fluids include a plurality of circular plates stacked to reduce the deceleration of the fluid, and a plurality of rectangular bent passages such as a plurality of right angle switching channels and unit bending channels are formed on the respective circular plates, So that the speed and pressure of the engine can be reduced.

And the plugs are vertically guided to the center of a disk column (disk stack) in which the disks are stacked so that each flow path can be opened and closed.

However, such a conventional resistance device for controlling the velocity and the pressure drop of the fluid forms a plurality of three-dimensional curved flow paths for each disk, which raises a problem that the manufacturing cost of the disk column increases.

In addition, there is a problem that the disk column itself receives both the resistance of the fluid and the pressure and deceleration of the velocity pressure head of the fluid and is easily broken by the frictional resistance with the plug.

In particular, when the inner circumferential surface of the disk column is damaged by frictional contact with the plug, the inner flow path is expanded or deformed more than the original size, and it becomes difficult to control the flow rate accurately according to the movement of the plug.

In addition, such a disk column requires a high production cost, while it is difficult to partially repair damaged parts, which is disadvantageous to disposal.

SUMMARY OF THE INVENTION The present invention has been accomplished in view of the above problems, and it is a first object of the present invention to provide a fluid control apparatus and a fluid control apparatus for controlling both a fluid resistance and a fluid pressure control head, And to provide an apparatus for controlling the fluid velocity and pressure of a valve that minimizes damages caused by fluid resistance.

A second object of the present invention is to provide a fluid velocity and pressure control device for a valve having a structure capable of reducing the maintenance cost by partially replacing only the damaged fluid control member as the frictional resistance with the plug is also configured to receive the fluid control member .

A third object of the present invention is to provide a disk stack having a plurality of disk stacks each having a plurality of disk stacks, And to provide a fluid velocity and pressure control apparatus for a valve that can be manufactured in a simple manner and thus can reduce manufacturing costs.

According to an aspect of the present invention for achieving the above object, a first aspect of the present invention is a fluidized-bed apparatus including an inlet port through which fluid flows, an outlet port through which fluid is discharged, (10) having a passage (13) for connecting the valve (10) to the valve (10), characterized in that the valve A disk stack for forming a plurality of dispersion channels in a radial direction; And a fluid control member inserted in the inner center of the disk stack and guiding the plug so as to open or close a plurality of flow path holes communicating with the interlayer dispersion flow path, And has an inner diameter that is relatively smaller than the cross section of the flow channel of the dispersion channel so as to reduce the head.

According to a second aspect of the present invention, in the first aspect of the present invention, the fluid control member includes a cylinder body inserted into the disk stack, an outer flow path guide groove recessed along the outer circumferential direction facing the disk stack in which the dispersion flow path is formed, And an inner passage guide groove recessed along the inner circumferential direction with the outer passage guide groove and the partition wall interposed therebetween, wherein the flow passage hole is formed in a plurality of through holes along the circumferential direction of each of the partition walls.

The third invention is characterized in that, in the first invention, the sum of the total number of inter-layer holes in the flow path hole is larger than the cross-sectional area of the sum of the total number of dispersion flow paths in which the flow cross-

The fourth invention is characterized in that, in the second invention, the height of the inner passage guide grooves is relatively larger than the height of the outer passage guide grooves.

The fifth invention is characterized in that, in the second or fourth invention, the height of the outer passage guide groove is larger than the height of the dispersion passage and smaller than the height of the inner passage guide groove.

According to a sixth aspect of the present invention, in the second aspect of the present invention, the flow path hole is formed so as to pass through the partition wall from an outer side to an inner side with an upward inclination.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the outer-side channel guide groove includes a step protruding from an upper portion and a lower portion around a channel hole formed in the partition wall, .

According to an eighth aspect of the present invention, in the second aspect of the present invention, in the second aspect of the present invention, the flow path hole is formed in each of an upper portion and a lower portion of the partition wall, the flow path hole formed in the upper portion of the partition wall is inclined downward from the outside to the inside, So that the fluid that branches off from the inside of the inner passage guide groove can collide with the inner passage.

According to the fluid velocity and pressure control apparatus of the valve according to the present invention, both the fluid resistance and the pressure decrease and deceleration of the velocity pressure head of the fluid are controlled by the fluid control member so that the expensive disk stack and the plug are damaged by the fluid resistance There is an effect that can be prevented.

In addition, since the dispersion flow path of the disk stack does not have various flow cross-sectional structures or shapes for irregularly orienting the fluid in order to achieve the fluid velocity head loss, it is possible to shorten the fluid resistance loss of the disk stack, So that the manufacturing cost can be reduced.

Also, since the frictional resistance with the plug is also configured to receive the fluid control member, only the damaged fluid control member is partially replaced, thereby reducing the maintenance cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a valve to which a fluid velocity and pressure control apparatus according to a first embodiment of the present invention is applied;
FIG. 2 is a perspective view of the fluid control member taken from FIG. 1,
FIG. 3 is an enlarged cross-sectional view of the main part in FIG. 1,
FIG. 4 is an enlarged cross-sectional view of an essential portion of a valve to which a fluid velocity and pressure control device of a valve according to a second embodiment of the present invention is applied,
FIG. 5 is an enlarged sectional view enlarging a main portion of a valve to which a fluid velocity and pressure control device of a valve according to a third embodiment of the present invention is applied,
FIG. 6 is an enlarged cross-sectional view of an essential portion of a valve to which a fluid velocity and pressure control device of a valve according to a fourth embodiment of the present invention is applied.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured.

Also, in this specification, when an element is referred to as being "coupled "," connected ", or "connected" with another element, the element is directly connected to the other element, Or may be directly bonded, but it should be understood that, unless otherwise specifically contradictory, there may be intervening, interlinked, or connected via another element in the middle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fluid velocity and pressure control apparatus for a valve according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a sectional view of a valve to which a fluid velocity and pressure control apparatus according to a first embodiment of the present invention is applied, FIG. 2 is a perspective view of a disk stack and a fluid control member extracted in FIG.

As shown in FIGS. 1 and 2, the present invention inserts a fluid control member into a disk stack so that a high-temperature, high-pressure fluid through the fluid control member can repeatedly perform pressure resistance and diffusion so as to be reduced in pressure Thereby reducing maintenance costs by minimizing damage to expensive disk stacks and plugs due to fluid resistance, and to a fluid velocity and pressure control device (100) for a valve.

First, the valve 10 is provided with an inlet 11 through which the fluid flows, a discharge port 12 through which the fluid is discharged, and a lower portion of the passage 13 connecting the inlet 11 and the discharge port 12, And a seat ring (30) for blocking the flow of the fluid in accordance with the close contact with the fluid (20).

The apparatus for controlling the fluid velocity and pressure of a valve according to the present invention is roughly divided into two parts and comprises a disk stack 110 and a fluid control member 120 inserted in the center of the disk stack 110 do.

The disc stack 110 is disposed in the passage 13 of the valve 10 and includes a plurality of dispersion channels 112 radially arranged on the stacked disc 111 so as to disperse the fluid introduced into the inlet 11 .

The disc stack 110 of the present invention decompresses the pressure of the fluid and functions to induce the fluid to the dispersion flow path 112 formed in a plurality of radial directions on the disc 111.

At this time, since the dispersion channel 112 does not have various water passage cross-sectional structures or shapes for irregularly orienting the fluid to achieve the velocity head loss of the fluid, the fluid resistance loss of the disk stack 110 is reduced, Not only can the lifetime of the stack 110 be increased, but also the fabrication cost can be reduced due to the simple fabrication.

The fluid control member 120 guides the plug 20 to open or close the plurality of flow path holes 122 inserted in the center of the disk stack 110 and in communication with the interlayer dispersion flow path 112. [ .

The fluid control member 120 includes a cylindrical body 121 inserted in the disc stack 110 and a disc body 110 formed in the disc stack 110 along the outer circumferential direction An outer passage guide groove 124 and an inner passage guide groove 125 which is recessed along the inner circumferential direction with the outer passage guide groove 124 and the partition 123 interposed therebetween.

At this time, the channel holes 122 are formed in a plurality of through holes in the circumferential direction of the partition walls 123.

FIG. 3 is an enlarged cross-sectional view of the recess in FIG. 1.

The flow path hole 122 formed in the fluid control member 120 of the first embodiment has a relatively small inner diameter than the cross section of the flow path of the dispersion flow path 112 so as to reduce the pressure of the fluid.

At this time, the flow path hole 122 is formed to have a larger cross section than the cross section of the sum of the total number of the dispersion flow paths 112 in which the cross section of the total number of layers is equal.

In this configuration, the fluid pressure introduced into the dispersion flow path 112 is depressurized individually through the flow path hole 122 whose flow path cross-section is reduced, and the entire flow path end surface of the flow path hole 122 is connected to the entire flow path And the fluid velocity head can be decelerated.

The height of the inner channel guide groove 125 formed in the fluid control member 120 is relatively larger than the height of the outer channel guide groove 124 so that the fluid velocity head discharged through each channel hole 122 is further decelerated A structure capable of minimizing the fluid resistance that collides with the plug 20 is provided.

Also, since the reduced pressure and reduced fluid pass through the lower portion of the plug 20 along the extended inner channel guide groove 125, damage to the lower circumferential surface of the plug 20 can be prevented due to the decrease in resistance of the fluid, It is possible to increase the lifetime of the battery 20.

On the other hand, each of the flow path holes 122 is formed eccentrically on the upper or lower portion of the partition 123 so as to be deviated from the center of the dispersion flow path 112 to increase fluid resistance, Can be provided.

4 is an enlarged cross-sectional view enlarging a main part of a valve to which a fluid velocity and pressure control device of a valve according to a second embodiment of the present invention is applied.

4, the height of the outer passage guide groove 124 is greater than the height of the dispersion passage 112 and is smaller than the height of the inner passage guide groove 125, as shown in FIG.

In this configuration, the pressure head of the fluid discharged to each of the dispersion channels 112 of the disk stack 110 is reduced through the outer channel guide grooves 124 whose end face is expanded, The fluid velocity head can be decelerated through the inner channel guide groove 125 in which the cross section of the water passage is extended continuously.

Further, the second embodiment can be configured to include the first embodiment, thereby further enhancing the fluid pressure reducing effect of the first embodiment.

FIG. 5 is an enlarged cross-sectional view of an essential portion of a valve to which a fluid velocity and pressure control device of a valve according to a third embodiment of the present invention is applied.

As shown in FIG. 5, the third embodiment includes the first embodiment, in which the flow path hole 122 is formed so as to pass through the partition wall 123 from the outside toward the inside upward.

This configuration is a structure for guiding the fluid discharged through the flow path hole 122 to the ceiling of the inner flow path guide groove 125 to decelerate the fluid velocity head by the impact resistance.

 At this time, the outer channel guide groove 124 may be formed by further forming a step 126 protruding upward and downward around the channel hole 122 formed in the partition 123.

This step 126 reduces the fluid velocity head by the collision resistance when the fluid discharged from the dispersion flow path 112 collides with the step 126 and flows again through the inclined flow path hole 122 through the inner flow path guide groove 125) so that the fluid velocity head can be further decelerated.

At this time, the step 126 is further formed in the lower portion of the inner passage guide groove 125 to prevent damage to the lower circumferential surface of the plug 20 due to deceleration of fluid resistance discharged to the discharge port 12.

The flow path hole 122 may be formed at a lower portion of the partition wall 123 so as to deviate from the center of the dispersion flow path 112 and may be inclined upwards from the inside toward the outside.

FIG. 6 is an enlarged cross-sectional view of an essential portion of a valve to which a fluid velocity and pressure control device of a valve according to a fourth embodiment of the present invention is applied.

6, the fourth embodiment includes the first embodiment, in which the flow path hole 122 is formed at the upper and lower portions of the partition 123, The hole 122 is formed to be inclined downward from the outside to the inside and the flow passage hole 122 formed in the lower portion of the partition 123 is formed to be inclined upward from the outside to the inside.

In this configuration, the fluid that is branched and discharged through the two flow path holes 122 collides with each other in the space of the inner flow path guide groove 125, thereby canceling the fluid velocity head, and consequently with the surface damage due to the fluid resistance of the plug 20 It is possible to prevent damage to the lower circumferential surface of the plug 20 due to reduction in the resistance of the fluid.

As described above, the fluid velocity and pressure control apparatuses of the valves of the first to fourth embodiments control both the resistance of the fluid and the pressure reduction and deceleration of the velocity pressure head of the fluid with the fluid control member, Because the frictional resistance is also configured to receive the fluid control member, it is possible to minimize the damage of the expensive disk stack and plug by the fluid resistance.

In addition, since the dispersion flow path of the disk stack does not have various flow cross-sectional structures or shapes for irregularly orienting the fluid in order to achieve the fluid velocity head loss, it is possible to shorten the fluid resistance loss of the disk stack, The manufacturing cost can be reduced.

In addition, since only the damaged fluid control member can be replaced, the maintenance cost can be reduced.

Although the present invention has been described in connection with the preferred embodiments mentioned above, various other modifications and variations will be possible without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims are intended to cover such modifications and changes as fall within the true scope of the invention.

10: valve 11: inlet 12: outlet
13: passage
20: plug 30: seat ring
100: Valve fluid speed and pressure control device
110: disk stack 111: disk 112:
120: fluid control member 121: cylinder body 122: flow hole
123: partition wall 124: outer flow path guide groove
125: Inner air flow guide groove 126:

Claims (8)

(10) having an inlet (11) through which a fluid flows, an outlet (12) through which fluid is discharged, and a passage (13) connecting the inlet (11) A speed and pressure control apparatus comprising:
A disk stack 110 disposed inside the passage 13 of the valve 10 and forming a plurality of dispersion channels 112 radially in a stacked disk 111 so as to disperse the fluid introduced into the inlet 11 ); And
A fluid control member 120 guiding the plug 20 so as to open or close a plurality of flow path holes 122 inserted in the center of the disk stack 110 and in communication with the interlayer dispersion flow path 112; Respectively,
The flow path hole 122 of the fluid control member 120 has an inner diameter relatively smaller than a cross section of the flow path of the dispersion flow path 112 so as to reduce the pressure of the fluid,
The fluid control member 120 includes a cylindrical body 121 inserted into the disc stack 110 and a disc body 110 formed to be recessed along the outer circumferential direction facing the disc stack 110 in which the respective dispersion channels 112 are formed A plurality of outer flow path guide grooves 124 and inner flow path guide grooves 125 recessed along the inner circumferential direction with the outer flow path guide grooves 124 and the partition 123 interposed therebetween,
Wherein a plurality of the flow path holes (122) are formed through the circumferential direction of each of the partition walls (123).
delete The method according to claim 1,
Wherein the flow path hole (122) is configured to have a larger cross section than a cross section of the sum of the total number of the dispersion flow paths (112) in which the cross section of the total number of layers is equal.
The method according to claim 1,
Wherein the height of the inner passage guide groove (125) is relatively larger than the height of the outer passage guide groove (124).
The method according to claim 1 or 4,
Wherein the height of the outer channel guide groove (124) is greater than the height of the dispersion channel (112) and smaller than the height of the inner channel guide groove (125).
The method according to claim 1,
Wherein each of the flow path holes (122) is formed to pass through the partition wall (123) with an upward inclination from the outside to the inside.
The method according to claim 6,
The outer flow path guide groove 124 includes a step 126 protruding from the upper and lower portions of the flow path hole 122 formed in the partition wall 123,
Wherein the step (126) is further formed in the lower portion of the inner passage guide groove (125).
The method according to claim 1,
The flow path hole 122 is formed in the upper part and the lower part of the partition 123 and the flow path hole 122 formed in the upper part of the partition 123 is inclined downward from the outside to the inside, Wherein the formed flow path hole (122) is formed so as to be inclined upward from the outside to the inside so as to collide with the fluid branched and discharged from the inside of the inside flow guide groove (125).
KR1020150056246A 2015-04-22 2015-04-22 Pressure Control Device And Fluid Velocity In The Valve KR101805798B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150056246A KR101805798B1 (en) 2015-04-22 2015-04-22 Pressure Control Device And Fluid Velocity In The Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150056246A KR101805798B1 (en) 2015-04-22 2015-04-22 Pressure Control Device And Fluid Velocity In The Valve

Publications (2)

Publication Number Publication Date
KR20160126103A KR20160126103A (en) 2016-11-02
KR101805798B1 true KR101805798B1 (en) 2017-12-08

Family

ID=57518189

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150056246A KR101805798B1 (en) 2015-04-22 2015-04-22 Pressure Control Device And Fluid Velocity In The Valve

Country Status (1)

Country Link
KR (1) KR101805798B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011236962A (en) 2010-05-10 2011-11-24 Kimmon Mfg Co Ltd Cage type pressure reducing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011236962A (en) 2010-05-10 2011-11-24 Kimmon Mfg Co Ltd Cage type pressure reducing device

Also Published As

Publication number Publication date
KR20160126103A (en) 2016-11-02

Similar Documents

Publication Publication Date Title
JP4948488B2 (en) Fluid decompressor
KR100800413B1 (en) Fluid energy reduction device
KR101714287B1 (en) Valve cage having zero dead band between noise abatement and high capacity flow sections
EP2798247B1 (en) Anti-cavitation valve seat
JP5701864B2 (en) Short stroke flow control valve
KR101233653B1 (en) A device for reducing pressure and velocity of flowing fluid
KR102489924B1 (en) Fluid flow control devices and systems, and methods of flowing fluids therethrough
JP4898563B2 (en) piston
KR101562885B1 (en) High pressure accumulator of brake system
EP2818779B1 (en) Solenoid valve
KR101889938B1 (en) 3d wave flow type trim-stack and valve therewith
US6039076A (en) High energy loss fluid control device
KR20130055061A (en) A device for reducing pressure and velocity of flowing fluid
KR101805798B1 (en) Pressure Control Device And Fluid Velocity In The Valve
KR102664246B1 (en) Plate valve and method for operating it
KR101583164B1 (en) a control apparatus for high pressure fluid of powerhouse control valve
US20130126770A1 (en) Anti-Cavitation and Noise Abatement Valve Trim
KR20140044427A (en) 3d wave flow type trim-stack and valve therewith
EP2716945A1 (en) Flow trim for a valve
KR102242216B1 (en) Multistage trim for control valves
JP6883846B2 (en) Multi-way valve and valve device
KR101376093B1 (en) high differential pressure control Valve using lamination-type disc for marine plant
KR200467301Y1 (en) Volume booster with low vibration and low noise
WO2006132120A1 (en) Pilot solenoid valve
JP2016173099A (en) Intake regulation valve for compressor

Legal Events

Date Code Title Description
A201 Request for examination